
\begin{tabular}{lcccc}
   \toprule
                             & Rad. Nat. (Avg) & PNV (Avg)      & PP (Avg)        & PSOE (Avg)\\
                             & (1)             & (2)            & (3)             & (4)\\
   \midrule 
   Signal strength           & 0.1559$^{*}$    & -0.1145$^{**}$ & -0.1980$^{***}$ & -0.0679\\
                             & (0.0798)        & (0.0535)       & (0.0657)        & (0.0489)\\
   PNV '33                   & 0.1336$^{*}$    & 0.0561         & -0.2532$^{***}$ & -0.1600$^{***}$\\
                             & (0.0706)        & (0.0656)       & (0.0328)        & (0.0253)\\
   Signal strength * PNV '33 & -0.1085         & 0.0612         & 0.3127$^{***}$  & 0.1500$^{*}$\\
                             & (0.1220)        & (0.0818)       & (0.0689)        & (0.0823)\\
                             &                 &                &                 &  \\
   Observations              & 228             & 228            & 228             & 228\\
   R$^2$                     & 0.56634         & 0.63786        & 0.74067         & 0.67409\\
   Within R$^2$              & 0.33840         & 0.42921        & 0.38664         & 0.65629\\
                             &                 &                &                 &  \\
   prov fixed effects        & $\checkmark$   & $\checkmark$  & $\checkmark$   & $\checkmark$\\
   \bottomrule
\end{tabular}


